AP242: Managed Model-Based 3D Engineering

STEP AP242 replaces AP203e2 and AP214 for CAD data. It was
published in 2014
as ISO
10303-242:2014(E). A second edition is under development with new
geometric capabilities and additive manufacturing setup information.

AP242 is the choice for CAD import/export. The EXPRESS schema
below contains the schema definitions in AP242, AP203, AP214, AP238,
and a few others. Shifting between versions can be automatically
handled by STEP Tools libraries.